Java ODBC


package homework3;
import java.sql.*;
import javax.swing.JOptionPane;

public class hw3_2 {

    public static void main(String args[])
    {
       
        //Variables for database insert set by JOptionpane data input
        String course = JOptionPane.showInputDialog(null, "Course ID:");
        String desc = JOptionPane.showInputDialog(null, "Description:");
        String cred = JOptionPane.showInputDialog(null, "Credits:");
        int credits = Integer.parseInt(cred);     
       
        //DB Connection
        String url = "jdbc:odbc:registrar";
        Connection con;
        Statement stat;
       
        String insert;
        insert = "INSERT INTO courses VALUES ('" + course + "','" + desc + "','" + credits + "');";
       
        try
        {
            Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
        }
        catch(java.lang.ClassNotFoundException e)
        {
            System.err.print("ClassNotFoundException: ");
            System.err.println(e.getMessage());
        }
       
        try
        {
            con = DriverManager.getConnection(url, "", "");
            stat = con.createStatement();
            ResultSet rs = stat.executeQuery(insert);
            
            System.out.println("Data successfully added to Courses table.");
           
            stat.close();
            con.close();
        }
           
        catch (SQLException ex)
        {
            System.err.println("SQLException: " + ex.getMessage());
        }
    }
}

The insert query works as intended, however I'm getting "SQLException: General error" from the 2nd catch - what error is it catching?

This thread is already a raging inferno, but I'd like to point out I knew what was wrong after one look at the javadocs despite not knowing how to just Java ODBC.  So, OP, if you want any genial advice, just learn how to parse every single facet of the javadocs and not take a line of it for granted.